Final answer:
The energy stored in an electric field between two parallel plates of a capacitor depends on the capacitance and the voltage across the plates. Without the voltage value being provided in this case, the exact amount of energy cannot be calculated.
Step-by-step explanation:
The question is about calculating the amount of energy stored in an electric field between two square parallel plates of a capacitor. To find the stored energy, we need the capacitance of the capacitor and the potential difference (voltage) across it. The capacitance C can be found using the formula C = ε0A/d, where ε0 is the permittivity of free space, A is the area of the plates, and d is the separation distance between them. Since the voltage is not provided in this question, we cannot calculate the exact value of the energy stored without it. However, the energy U is given by the equation U = 0.5 * C * V2, where V is the potential difference.