To calculate the power output in Watts of the electrochemical cell, we can use Ohm's Law and the formula for power:Ohm's Law: V = IRPower formula: P = IVWhere V is the cell potential 1.5V , I is the current, and R is the total resistance 10 ohms .First, we need to find the current I using Ohm's Law:1.5V = I * 10 ohmsI = 1.5V / 10 ohmsI = 0.15ANow, we can use the power formula to find the power output:P = IVP = 0.15A 1.5V P = 0.225WThe power output of the electrochemical cell is 0.225 Watts.