I didn't know, so I looked up BabyCenter, which doesn't say, so then I thought
I'd check Earth's Best and Gerber since they're the 2 rice cereal brands that
are everywhere. Both websites say go up to 4 tablespoons, but of course Gerber
says this is just a guide, so I'd say 5 tablespoons is probably not too much
although it'd be interesting to see if you decrease it to 4 tablespoons whether
your baby would be willing to eat more fruit/veggies? Let me give you the links
to the pages where Earth's Best and Gerber suggest 4 tablespoons:
http://www.earthsbest.com/baby_nutrition/feeding_schedule_print.php
http://www.gerber.com/fpidea?ideaid=idea1
By the way, you may find it interesting that Earth's Best, on the page provided
above, suggests for 9-12 months, only 1 grains feeding a day (1/4 - 1/2 cup).
I'm still feeding my 11.5-month-old grains twice a day (once in the morning with
fruit and once in the evening with meat and veggies), but I did recently add a
third solid meal (midday) of plain yogurt and fruit.
P.S. Cereal that's fortified with iron, like beef and spinach, which I mentioned
last time, is also great in terms of supplementing breastmilk (which is near
perfect except it lacks iron.) I thought I'd call this out since your baby seems
to like cereal very much! :)

