In the 21st century.
Compared to hand-cranked generators, the concept of electrolysis might be more widely disseminated.
Especially the electrolysis of saturated saltwater, which is a fundamental chemical practical reaction.
In electrolysis experiments, the cathode undergoes a reduction reaction, gaining electrons.
The anode, on the other hand, undergoes an oxidation reaction, losing electrons.
Simultaneously, after the electrolysis reaction occurs, some active metal's non-oxygenated acid salt will generate a base at the cathode.
While the non-active metal's oxygen-containing acid salt will generate acid at the anode.
Additionally, after the electrolysis reaction, the cathode will also produce solids and reducing gases.
As for the choice between cathode and anode...
A common operation for the electrolysis of saturated saltwater is using copper as the cathode and carbon rods as the anode.
Of course.
If conditions are general, actually two carbon rods won't have much impact.
