I remember doing copper plating experiments when I was a kid. I believe we used copper sulphate for that ut I forget the other details of the experiment. I presume we used a battery for a dc supply.
Cavitation:
1. disturbance of liquid: the rapid formation and collapse of bubbles in a liquid, caused by the movement of something in the liquid such as a propeller, or by waves of high-frequency sound
2. pitting of surface: the pitting of a solid surface as a result of the forces of repeated cavitation in a surrounding liquid
3. formation of cavities in tissue: the formation of cavities in body tissue, caused by a disease, e.g. as an effect of tuberculosis
I had to look up the word. I had heard it before in connection with boats but I had misunderstood the meaning. I thought it meant that a boat would lean slightly because of the high speed turning of the propeller. Maybe that is part of it anyway if a lot of bubbles are created under the boat.
A few years ago some teenager drowned near a water fall that was very foamy. The great number of bubbles made the water lighter in weight and he was unable to rise to the surface. Do not dive into a swiming pool of beer unless you can drink yourself back to the top.
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