To calculate the anodic Tafel slope ba for the oxidation of zinc, we can use the Tafel equation: = ba * log i / i0 where is the overpotential, i is the current density, and i0 is the exchange current density.First, we need to find the overpotential . We can do this by rearranging the Tafel equation: = ba * log i / i0 ba = / log i / i0 Given the current density i is 5 mA/cm 0.005 A/cm and the exchange current density i0 is 2.5 x 10^-6 A/cm, we can plug these values into the equation: = ba * log 0.005 / 2.5 x 10^-6 However, we don't have the value of overpotential given in the problem. To find the anodic Tafel slope ba , we need the overpotential value. If you can provide the overpotential value, we can calculate the anodic Tafel slope for the oxidation of zinc in the given solution.