Water Damage Repair + Diagnosis

So, last week, I dumped a ton of water on my laptop and within seconds it shutoff. Now it's dry and doesn't boot/power on at all and it doesn't get power from an AC adapter (the light on the magsafe adapter doesn't light up).

I'm trying to take apart and repair this computer for fun. I opened up the back and thought I saw some damage, it would be great if someone else could take a look.

(Picture 1) Back-side of the motherboard: Does that white stuff look like corrosion?

(Picture 2) Magsafe/i-o board: Does it look burnt/damaged? And if I replaced just that could I be maybe able to get the AC power working?

Thanks!