The following electrochemical cell is represented as `:`
`Pt(1)|Hg^(2+),Hg_(2)^(2+)(a=1)||Ce^(4+),Ce^(3+)(a=1)|Pt(2)`
`a.` If an ammeter is connected between two platinum electrodes, predict the direction of flow of current.
`b.` Will the current decrease or increase with time?
Given `:E^(c-)._(2Hg^(2+)|Hg_(2)^(2+))=0.92V,E^(c-)._(Ce^(4+)//Ce^(3+))=1.61V`

Explanation

To solve the problem, we will analyze the electrochemical cell step by step.

### Step-by-Step Solution:

**Step 1: Identify the components of the cell.**
The cell is represented as:
\[ \text{Pt(1)} | \text{Hg}^{2+}, \text{Hg}_2^{2+} (a=1) || \text{Ce}^{4+}, \text{Ce}^{3+} (a=1) | \text{Pt(2)} \]
Here, we have:
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