Oven Baked BBQ Chicken

4 1/2-5 Pounds chicken, pieces
1/2 Cup all purpose flour
1 Teaspoon salt
1/2 Teaspoon pepper
1/4 Cup margarine
1 Bottle prepared BBQ sauce
Wash and dry chicken pieces. Combine flour, salt, and pepper; place in a bag with chicken. Shake to coat chicken. Melt margarine in a baking pan in a 425 degree oven. Place chicken pieces, skin side down, in the pan in a single layer. Bake for 45 minutes; pour off fat and turn. Spoon BBQ sauce over chicken; bake at 375 degrees for 30 minutes longer or until tender. Baste with sauce while baking. Serves 8.