The amount of Pedialyte to be given depends on the child's age, weight, and severity of dehydration. As a general guideline, children under one year of age may need approximately 1-2 ounces per hour, while older children may require 4-8 ounces per hour. It is important to give small, frequent sips rather than large amounts at once to prevent vomiting. Parents should refer to the product's instructions and consult their pediatrician for specific dosing recommendations.