$**$Objective Question $($Chemical Engineering$)$:$**$

How do the principles of electrochemical engineering contribute to applications such as electroplating, batteries, and fuel cells within chemical engineering?

A$)$ By optimizing electrode materials to enhance the efficiency of electrochemical reactions in electroplating processes.

B$)$ By controlling the flow rate of electrolytes to maximize the energy storage capacity of batteries.

C$)$ By regulating the operating temperature to improve the power output of fuel cells.

D$)$ By adjusting the voltage and current to achieve desired deposition rates in electroplating.