Copper plate is often used as a prep step for plating other metals, such as nickel and silver. It also (usually) increases the conductivity of the metal to be plated. [A_Steingrube] is using the ...

Using a process known as mechanical plating or peen plating, he deposits a layer of copper on a PLA print ... Unlike electroplating, it can plate hard-to-reach recesses. It also doesn’t cause ...

we found it useful to combine the iron anode with a plate of gas-coal, copper, platinum, or any other metal being electro-negative toward iron, and which we place in the bath itself.