a few words on electroplating >>
electroplating silver onto copper jewelry. Secure a vessel to hold enough water to fully immerse the object to receive the plating. Fill with water deep enough to cover object to be plated. Add some salt to the water. From a wire, suspend the copper object so it is submerged in the water & with as little as possible of the suspending wire in the water. Now suspend a piece of pure silver by a wire so that no part of the suspending wire is in the water, but only the silver. Attach the wire from the copper object to a DC low voltage source (9v volt battery will work fine) on the negative terminal, and connect the wire from the silver to the positive terminal of the battery. The silver will break down on the silver piece, move through the elctrolyte (the salty water) and then deposit on the copper. The process is slow but steady. The bubbles coming off the silver(sacrificial anode) are oxygen, the bubbles coming off the jewelry are hydrogen.
[note: if following the above instructions, you get copper plating the silver, then I reversed the leads and so should you.

anode? cathode?

darn that Ben Franklin and his negative positivism.

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