According to the dosing chart provided by Advil [3], the maximum daily dosage for chewable Advil varies based on the child's age and weight. For children between the ages of 2 and 11, the maximum daily dosage ranges from 1200mg to 2400mg, depending on the child's weight. It is important to follow the dosing instructions carefully and not exceed the recommended dosage. The drug patent watch website [1] provides information on the active ingredient in Advil, ibuprofen, and its maximum daily dosage. It states that the maximum daily dosage of ibuprofen for adults is 3200mg per day, but it does not provide information on the maximum daily dosage for children. The Advil website [2] provides information on the Junior Strength Chewables, including the active ingredient, dosage instructions, and safety information, but it does not provide information on the maximum daily dosage. It is important to consult a healthcare professional before giving any medication to a child.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/our-products/childrens-advil/junior-strength-chewables/
[3] https://childrens.advil.com/content/dam/cf-consumer-healthcare/bp-advil/es_US_children/pdf/childrens-advil-dosing-chart-1.pdf