Can Smokers see their Coppercloud?

[kroen]

If they can't, then how do they know how big it is?

If they can, does that mean they can see other Smokers' Copperclouds?

[Senor Feesh]

Question one, I don't know and would have to see if it's ever mentioned in-text.

Question two, I'm gonna go with no, as it's an internal metal. Also no other Allomancy allows you to detect another Allomancer directly apart from bronze.

[Phantom Monstrosity]

It's an 'invisible cloud', so no. 

 

COPPER(INTERNAL MENTAL PULLING METAL) A person burning copper gives off an invisible cloud that protects anyone
inside of it from the senses of a Seeker. While within one of these “copperclouds,” an Allomancer can burn any metal they wish, and not worry that someone will sense their Allomantic pulses by burning bronze. As a side effect, the person burning copper is themselves immune to any form of emotional Allo-mancy (Soothing or Rioting). A Misting who can burn copper is known as a Smoker.

 

“I started burning copper,” Kelsier said, “the companion to bronze. When you burn copper, it hides your use of powers from other Allomancers. You can try burning it now, if you want, though you won’t sense much.”
Vin did so. The only change was a feeling of slight vibration within her.

[kroen]

So they in fact have no way of knowing the size of the Coppercloud? That seems like a huge drawback. Unless you have a Seeker friend and another Allomancer willing to test the size, you can't know if it's 100 square meters or 1.

[Voidus]

So they in fact have no way of knowing the size of the Coppercloud? That seems like a huge drawback. Unless you have a Seeker friend and another Allomancer willing to test the size, you can't know if it's 100 square meters or 1.

If you were self trained then no, but since most allomancers are relatively equal in strength they'd know the rough size of it.