For example, the Daniell galvanic cell's copper electrode is the positive terminal and the cathode.

The circuit connects to the insect via a 20 m gold wire and to the plant via a copper electrode placed in the soil.

In resistance welding, the thin area of overlap on the curved sheet is fused by intense heat conducted through a copper electrode.

The copper electrodes might be slightly different in composition or the concentration of electrolyte may not be perfectly uniform throughout the cell.

From it projected a ring of copper electrodes, pointing at the coma-sky.

This tip can be connected to a larger copper electrode through the use of silver epoxy then polished to yield a sharpened tip.

Similarly, hydrogen gas evolves as bubbles from the copper electrode.

For example, the standard electrode potential for a copper electrode is:

The copper electrode will work best if there is some copper in the solution making the liquid rather blue or green.

The water cooled copper electrodes remove the surface heat quickly, accelerating the solidification of the metal, since copper is an excellent conductor.