around 16-17 damage, depending on your strength bonus.
input your weapon and other equipment you will be using: http://www.scape-xp.com/runescape-max-hit-calculator.html
the new update just multiplies everything by ten. the new highest hit is 990 but if you have 99 strength, low life points and dharok's set on, you can easily hit 1,000 +
Attack has nothing to do with max hit, it just shows how often you hit it. but for strength I can calculate you will hit 7, but priv message me what you wear, and I can give you a more accurate prediction.
Strength
you can go to http://www.runehq.com/guide.php?type=calculator&id=00712 and enter your levels and such, it will find your max hit.
Attack makes you hit more often and makes you wield weapons
Attack, Strength, and possibly defence because of these raises your character's level which in turn raises your max hit. It also changes depending on what weapon you use.
You can't you just have to take the hit.
strength and weapons are what detirmines how much damage you do. attack determines your accuraccy since you can only equipt steel with a steel 2 handed you might do like 6 or something. there are many calculators available to determine the exact max hit possible. See the related link.
Improving your attack level increases your chance to hit an opponent.
ull be able to hit 31 with prayer
It certainly does. Strength if you are a mage affects the strength of your hit. Not as much as a high magic lvl, but still alot.