Trigger for a Zn oxidation reaction in a battery Reference

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The discussion centers on the trigger for the oxidation reaction of zinc in a battery, questioning whether copper or the solution facilitates zinc losing electrons. It highlights the importance of a wire connection between the electrodes for zinc to effectively donate electrons. The charge on the zinc electrode can exist independently without needing to move, as it is influenced by the chemical reaction. The potential of the reaction is ultimately constrained by the chemical properties involved. Understanding these interactions is crucial for grasping the oxidation process in battery systems.
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Who is the trigger of the oxidation reaction. Copper which attracts electrons from the Zinc or solution which makes Zinc losing electrons and become positively charged. I am struggling to understand what actually makes Zinc to enter the solution and leave 2 electrons behind. If there is no wire between positive and a negative electrode of a battery Zn won't be able to give away 2 electrons or ZN electrode will still be able to gain a negative charge due to reaction with the solution. Thank you guys
 
The reaction happens for chemical reasons as described in http://hyperphysics.phy-astr.gsu.edu/hbase/electric/battery.html and anywhere else you might look.

There is a charge built up on the zinc electrode. It doesn't have to go anywhere to exist as a charge. The ultimate potential is limited by the chemical reaction.
 
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