1. Adjust oven rack to upper-middle position and heat oven to 425 degrees. Combine breadcrumbs, Parmesan, garlic, oil, salt, and pepper to taste in bowl.
2. Pat chicken dry with paper towels and transfer to 13 by 9-inch baking dish. Combine basil and mayonnaise in small bowl and spread mixture evenly over chicken. Sprinkle breadcrumb mixture over mayonnaise, pressing lightly to adhere.
3. Bake until crumbs are golden brown and instant-read thermometer inserted in thickest part of chicken registers 160 degrees, 18 to 22 minutes. Serve with lemon wedges.