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 ...

Nickel plating tends to use more sustainable practices, including low or zero volatile organic compounds (VOCs). That said, some manufacturers instead look to composite electroless nickel coatings ...

but [Breaking Taps] wanted to try and improve on the strength of these builds buy adding metal to them through electroplating. Both copper and nickel coatings are used for these test setups ...

The authors used a special self-propagating photocurable resin, electroless nickel plating and a special solution to dissolve the resin. I have a cheap resin printer and some DIY copper/nickel ...