After patiently waiting years and years for my moment, I will cash out and what will seem like an infinity of pennies will become all mine. I will create a bronze army never seen before. I myself will have technology created to engulf myself in pure penny body armor, do you remember that gold skinned villain at the end of Ninja Scroll? That will be me but in copper.
Under my power I will cover the world in pennies, it will be Complete World Saturation....of Pennies! Our planet will become a copper heaven. The sun may continue to shine, but the world will never, ever be the same again.
Was going to say not possible, but then again with trillions if not more pennies, even 2% copper is enough I guess.
If he went with brass, it would be easy. He already has more than enough zinc, just need to either strip other pennies or purchase more copper. ---
I want a pet Lavos Spawn. [Order of the Cetaceans: Phocoena dioptrica]