That plate is for wire feed welding steel.
And yes, it works.
Steel wire will not stick to copper, so the description they use is accurate.
Heard of a few guy's trying to use a penny before.
This will work, just make sure that you use an actual older copper penny.
The new pennies are made diffarantly, and steel wire will bond to them
"Bye" Bye" Riceboy
(Ex-wife fore sale... take over payments)