The initial rate for the reaction of solid CaCO₃ with 1.0 M HCl at 25 °C is 0.20 mol L⁻¹ s⁻¹ when a powdered sample (surface area = 250 cm²) is used. When a sample with half that surface area is used at 35 °C, the initial rate is measured to be 0.24 mol L⁻¹ s⁻¹. Based on these data, which experimental parameter—surface area or temperature—exerts the greater influence on the reaction rate under these conditions? Briefly justify your answer.