No way to fix that - your tank is scrap.
Yes you can.
To replace an electric water heater element, follow these steps: Turn off the power to the water heater at the circuit breaker. Shut off the water supply to the heater. Drain the water heater tank. Remove the access panel and insulation. Disconnect the wires from the old element. Unscrew and remove the old element. Install the new element and reconnect the wires. Replace the insulation and access panel. Refill the tank with water. Turn the power back on and test the heater. Make sure to follow all safety precautions and consult the manufacturer's instructions for your specific water heater model.
To remove a water heater element, first turn off the power and water supply to the heater. Use a wrench to unscrew the element from the tank. Be cautious of any remaining water in the tank. Replace the element if necessary and securely tighten it back into place.
Common causes of water heater noise include sediment buildup, a malfunctioning heating element, or a loose heating element. To resolve these issues, you can flush the water heater to remove sediment, replace the heating element if it is faulty, or tighten the heating element if it is loose.
Turn off the power supply to the water heater. Drain the water heater to below the level of the element you want to replace. Use a wrench to unscrew and remove the old element, and then install the new element by screwing it in securely. Refill the water heater, turn the power back on, and check for leaks.
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if an element is constantly expanding and contracting (if you keep switching the hot water heater off and on again) all the time it causes cracks and over time the water leaks into the element causing it to short which means you have to replace it.
To replace the heating element on an electric water heater, first, turn off the power to the heater at the circuit breaker. Then, drain the water from the tank and disconnect the wires from the old heating element. Remove the old element and install the new one in its place. Reconnect the wires and refill the tank with water. Finally, turn the power back on and test the heater to ensure it is working properly.
Common problem. The heater grid burns a hole and the only fix is to replace the element.
How do you replace the heater core on a jimmy?
To replace a water heater pressure relief valve, first turn off the water and gas or electricity supply to the heater. Drain some water from the tank to relieve pressure. Unscrew the old valve and replace it with a new one of the same size and pressure rating. Use Teflon tape on the threads for a secure fit. Finally, turn the water and power back on and check for leaks.
A "heater" or a "heater core"?