Why does increasing the surface area of the cathode submerged in the electrolyte increase the current in a galvanic cell? [duplicate]








**This question already has an answer here**:
 
 




[What is the benefit of high surface area electrodes?](/questions/118445/what-is-the-benefit-of-high-surface-area-electrodes)

 (1 answer)
 

Closed 3 months ago.



I can understand why increasing the surface area of the anode would increase the current, because the rate of oxidation will be increased resulting in a greater rate of flow of electrons through the wire to the reduction half-cell. However, increasing the surface area of the cathode also seems to increase the current.


Even though the rate of reduction is increased by increased submersion of the cathode, what bearing does this have on the current?




In an electrolysis, the current increases if the surface of the electrodes increases. And it also increases if the distance between the electrodes decreases.


 1