But, Jeff, I have been advised that the BTB works a chelation of copper and iron, so is it possible to bind and drop these elements out of wort and beer or to have them skimmed out (pulled out if skimmed) with the hot break?
Yes.
I have a little copper in my system, and use BTB to drop it out of the wort.
when using btb, do you slso have to ensure that no trub makes its way to the fermenter?
I try and keep as much out as possible, but hard to not get some. The copper should be bound with the BTB. Im not a brewing chemist, so i could be wrong there.